Lasting machines



Dec. 13, 1960 B. JORGENSEN 6 LASTING MACHINES Filed Sept. 2, 1958 9Sheets-Sheet 1 In 12 e nior Bernhardf Jorgensen By his Attorney Dec. 13,1960 B. JORGENSEN STING MACHINES 9 Sheets-Sh 2 Filed p 2, 195a w A zDec. 13, 1960 B. JORGENSEN LASTING MACHINES 9 Sheets-Sheet 3 Filed Sept.2, 1958 Dec. 13, 1960 B. JORGENSEN LASTING MACHINES 9 Sheets-Sheet 4Filed Sept. 2, 1958 Dec. 13, 1960 B. JORGENSEN LASTING MACHINES 9Sheets-Sheet 5 Filed Sept. 2, 1958 Dec. 13, 1960 B. JORGENSEN LASTINGMACHINES 9 Sheets-Sheet 6 Filed Sept. 2, 1958 l [/1612 L Z34 P LJ 252Dec. 13, 1960 B. JORGENSEN LASTING MACHINES 9 Sheets-Sheet 7 Filed Sept.2, 1958 Dec. 13, 1960 B. JORGENSEN 2,963,718

' LASTING MACHINES Filed Sept. 2, 1958 9 Sheets-Sheet 8 Dec. 13, 1960 B.JORGENSEN ,9

LASTING MACHINES Filed Sept. 2, 1958 9 Sheets-Sheet 9 b V/k f 44 mm PUnited States i fiatent LASTING Maerrmns Bernhardt Jorgensen,Marbiehead, Mass., assignor to United Shoe Machinery Corporation,Flemington, Nl, a corporation of New Jersey Filed Sept. '2, 1958, Ser.No. 758,384

14- Claims. (*Cl. 12-71) This invention relates to lasting machines andis herein illustrated as embodied in a toe lasting machine constructedgenerally as disclosed in United States Letters Patent No. 2,324,509,granted July 20, 1943, on an application filed in the name of thepresent applicant, but modified, in some respects, as disclosed inUnited States Letters Patent No. 2,377,887, granted lune 12, 1945, No.2,479,575, granted August 23, 1949, and No. 2,663,036, granted December22, 1953, on applications also filed in the name of the presentinventor. It will be understood, however, that in certain broaderaspects the invention is not limited to embodiment in a toe lastingmachine or to the exact mechanical construction herein illustrated.

The above mentioned machine to which the invention is herein shown asapplied is provided with a toe rest and a heel rest which are moved intoengagement with the shoe respectively on the top of the forepart and onits heel-end face to hold the shoe during the toe-lasting operation.Included among its operating instrumentalities are a toe former forconforming the toe-end portion of a multi-ply upper to the contour ofthe last by wiping it heightwise of the last, means for trimming themargins of all but the outer layer of the upper materials thus conformedto the contour of the last while leaving a margin of the outer layer tobe lasted inwardly over an insole on the last next to the insole, andwipers for thereafter wiping the margin of the outer layer inwardly overthe insole.

The machine is also provided with grippers which grip the margins of theseveral layers of the upper at the end and the sides of the toerespectively, the end gripper being moved lengthwise of the last and theside grippers widthwise of the last to pull the upper in outwarddirections prior to the action of the toe former thereon and the severalgrippers holding the upper under tension as the toe former is operatedto wipe the upper heightwise of the last. The grippers then hold themargin of the upper spread outwardly over the wipers preparatory to theupper-trimming operation which is performed by a plurality of outwardlymovable trimming knives, the grippers releasing the upper prior to thecompletion of the upper-trimming-operation and being retracted to avoidinterference with the knives. Thereafter the upper is released also bythe toe former and the operations of pulling it and of Wiping itheightwise of the last are repeated, the grippers at this time actingonly on the outer layer of the upper materials. Cement is then appliedto the toe end of the shoe and the wipers are perated to Wipe the marginof the outer layer inwardly over the insole into position to be securedto the insole by the cement. In this operation a portion of thecementapplying means acts as a retarder and is forced upwardly away fromthe insole by the pressure of the wipers and the margin of the upperthereon. While the wipers are holding the margin of the upper inoverwiped position the machine comes automatically to a stop, afterwhich it is again started to cause it to complete the cycle ofoperations and to return the parts to their initial positions.

The different instrumentalities are operated in proper time relation toone another by fluid-pressure means to which fluid, preferably lightoil, is delivered from a manifold where the fluid is maintained underpressure by a pump. The machine is controlled by a treadle in responseto the first depression of which an outlet from the manifold is closedto cause the development .of the required operating pressure therein bythe pump and the grippers also are closed on the upper and in responseto a second depression of which the cycle of operations is started. Asis more particularly disclosed in Patent No. 2,663,036, the priormachine is also provided with another treadle by means of which controlvalves operated by the first-mentioned treadle may be utilized to causeopening of the grippers and the bringing of the machine to a stop at anypoint in the operating cycle and with still another controlling memberby means of which the machine may be brought to a stop without affectingthe grippers.

An object of the present invention is to adapt a machine of the abovetype for use in the lasting of shoes the upper materials of which are tobe secured to the insole in lasted position by means of fastenings such,for example, as tacks driven through the overlasted margin of the uppermaterial and insole and clenched on a metal plate on the bottom of thelast. With this object in view, and in accordance with features of theinvention, in the herein illustrated machine, which, like the priormachine referred to above, has means for shaping the toe end portion ofa multiply upper to the contour of its last including a toe former forwiping the upper materials heightwise of the last and grippers fortensioning the upper materials, a plurality of trimming knives forsevering all but the outer layer of the upper materials, and wipers forwiping the margin of the outerlayer inwardly over the insole incooperation with a retarder device; the cement applying function of theretarder device is eliminated and, instead, means are provided fordriving fastenings through openings in the wipers at the conclusion oftheir overwiping action. More particularly, and in accordance with otherfeatures of the invention, the fasteningdriving means comprises aplurality of tack drivers arranged to operate through driver passagesformed in the retarder device which, as in the prior machine, is mountedon a carrier, together with the upper trimming knives, for movementsbetween an inoperative position remote from the toe end of a shoe in themachine to an operative position adjacent to the toe end of the shoe,and a tack distributing mechanism, separate from the retarder device,for delivering a load of tacks to the several driver passages while theretarder device is in its remote and inoperative position is providedtogether with means for operating the drivers to drive these tacksthrough the wipers when the retarder device is in its operativeposition.

The above and other objects and features of the invention will appear inthe following detailed description of the preferred embodiment which isillustrated in the accompanying drawings and will be pointed out in theclaims.

In the drawings,

Fig. 1 is a view in front elevation of a .toe lasting machine embodyingthe features of this invention;

Fig. 2 is a view in perspective and at an enlarged scale of tackhandling mechanism provided in the machine shown in Fig. 1;

Fig. 3 is a view in rear elevation of a portion of themachine showingcertain operating parts which are associated with the tack handlingmechanism;

Fig, 4 is a plan view of another portion of the machine with certainparts shown in horizontal section;

elements associated with the machine;

Fig. 7 is a viewin section substantially on line VII-VII of Fig. andlooking in the direction of the arrows;

Fig. 8 is a plan view of still another portion of the I machine withcertain parts broken away;

Fig. 9 is a view. in section substantially on line IXIX of Fig. 10 andlooking in the direction of thearrows;

Fig. 10 is a View in section substantially on line X-X of Fig. 5, at anenlarged scale and looking in the direction of the. arrows; l r

Fig. 11 is a view of thatportion of the machine which is shown invertical section in Fig. 9 asseen from below; Figs. 12 through 17 are aseries of views of the operating elements of the machine shown indifierent positions assumed during a cycle of operations with certainparts shown in vertical section; and r Fig. 18 is a plan view of thebottom of, a shoe after its toe portion has been lasted and the lastingmargin of the upper materials fastened to the insole in lasted positionby means of tacks.

Referring to these drawings, except as modified for the purposes of thepresent invention and as will be explained in detail below, the hereinillustrated machine is otherwise constructed substantially in accordancewith the disclosure of Patent No. 2,663,036, certain features of whichare described more completely in the other patents mentioned above, andreference may be made to one or more of these patents for specificmechanical details which it is not necessary or desirable to describeagain in the present specification. Thus, the machine shown in thesedrawings has a toe rest 30, a sole rest 32, and a heel rest 34, Fig. 1,associated with a main frame construction indicated generally by thereference character 36, for holding a shoe, herein illustrated ascomprising a multi-ply upper including an upper U and lining I assembledon a last La with an insole I, during the lasting of the toe end of theshoe'by means of lasting instrumentalities similar to those of themachine of Patent No. 2,663,036, and including grippers 40, one of whichappears in Figs. 12-15, a toe former 42, Figs. 12-17, toe wipers 44, 44,Figs. 8 and 12 -17, and a retarder device indicated generally by thereference character 50, Figs. 9, 11 and -17. Also, as in the priormachine, means including a plurality of knives, one of which appears inFig. 1 and in Fig. 13 and is designated by the reference character 52,are provided for trimming away the margin of the lining 1 around the toeend of the shoe during the lasting operation;

For the purposes of this invention, the wipers 44, 44 are provided withopenings 60, 60, Figs. 8 and 12l7, and there is associated with theretarder device 50 means for inserting fastenings through these openingsfor securing the lasting margin of the upper U to the insole I in lastedposition. Thus, this retarder device comprises a block 70, shaped in themanner shown in Figs. 9 and 11, and provided with an inclined arcuatewear plate 72, secured thereto by screws 73. This block, which isdetachably secured to a supporting bar 74 by means of screws 76, isprovided with a plurality of driver pasages 78, 78 arranged in horseshoeshape, as seen in Fig. 11. Slidably mounted in each of these driverpassages is a driver 80 and these drivers are each secured to a headerblock 82 by means of a setscrew 84, Fig. 9. Intersecting each driverpassage 78 is a groove 86 and a bore 88. Fitted into each bore 88 is thelower end of a tack feeding tube 90,.and located incach groove-86 is atack retaining -leaf spring 92. p

Secured to the upper portion of the supporting bar 74 by means of screws100, 100, Fig. 5, arethree blocks 102, 104 and 106 Fig. l0.a r-ranged.to receive avertically movable driver operating bar 108, guidedlaterally by adjustable abutment screws 107, 107, and against the lowerend of which the header block is yieldingly held by a compression spring109. The retarder device 50 is supported on a carrier, indicatedgenerally by the reference character and corresponding to the carrier878 of the machine disclosed in Patent No. 2,663,036, by means of a pairof parallel links 120, 122. As in the prior machine of theaforementioned patent, this carrier is mounted on a post 124, Fig. 4,which is adapted to be rotated and moved vertically to shift the uppertrimming means, also supported on another portion of this carrier, andthe retarder device to and from their operative positions adjacent tothe toe end of a shoe being lasted. A coil spring 126 is arranged tohold the retarder device yieldingly in the position in which it is shownin Fig. 5 and as determined by an adjustable stop screw 128. During thelasting operation, as will presently appear, the retarder device iselevated against the resistance of the spring 126 and such upwardmovement is limited by a stop screw 130, Fig. 7. Supported on the block106 by means of a post 132 is a header block 134 in which the upper endsof the several tack feeding tubes 90 are secured. v

The driver bar 108 is connected, at its upper end, to the outer end of adriver operating lever which is pivotally mounted at its innerend on apin 142 in a bracket 144 secured to the carrier 110, Fig. 5. Foroperating this lever 21 pair of driver springs 146, 146 are provided,Fig. 4, and swinging movement of this lever, in one direction, islimited by an adjustable stop screw 148 adapted to engage an abutmentblock 150 on the carrier 1'10. Supported in a bracket 152, secured to aportion of the carrier by means of screws 154, Figs. 4 and 7, is acylinder 156, see also Fig. 5, in' which there is fitted a piston 158having a transverse slot 160 through which a pin 162, carried in theupper portion of the cylinder, extends. Formed integrally with thepiston 158 is a curved arm 164 and a piston return spring 166 isstretched between this arm and an eye-bolt 168, mounted in the bracket152, see also Fig. 7. Pivotally mounted on a stud 170, carried by thepiston 158, is a latch arm 172 having a shoulder surface 174 adapted toengage a pin 176 'which projects outwardly from one side of the driveroperating lever 140, Fig. 5. The latch arm extends upwardly beyond theaforementioned shoulder surface and is provided with a guide surface178.

A link 180 connects the latch arm to the upper arm of a trip lever 182which is pivotally mounted on a portion of the carrier 110 by means of astud 184. A coil spring 185 connected to this arm tends to hold thelatch arm 172 in the position shown in Fig. 5 and with the guide surface178 against the pin 176. Accordingly, when fluid under pressure isadmitted to the cylinder 156 beneath the piston 158 through a conduit186, connected to the valve which admits fluid under pressure to thecylinder containing the piston which operates the trimming knives andwhich corresponds to valve 822 of the machine disclosed in Patent No.2,324,509, the piston 158 will be elevated to retract the drivers 80,80. In the herein illustrated machine, the aforementioned valve isopened substantially at that point in the cycle indi cated in the timingchart shown in Fig. 52 of the lastmentioned patent, but instead ofclosing at the point in the operating cycle indicated on that chart,this valve is kept open until near the end of the operating cycle andafter the wipers have been advanced and closed.

Referring to Figs. 6 and 8, the wipers 44 are associated with a wipercarrier, indicated generally by the reference character andcorresponding to the wiper carriers 346 of Patent No. 2,324,509 and 716of Patent No. 2,663,036. This carrier is mounted for sliding movementrelatively to a wiper head 192 in the direction of the arrow in Fig. 6,as inthe machines of the mentioned patents. swinging movement impartedto it during the operation of The wiper head 192, in turn, is mountedfor.

23 the machine by a pair of fluid pressure operated pistons, one ofwhich is shown in Fig. 6, and indicated by the reference character 260.Each of these pistons is fitted within a cylinder 292 and is connectedto the wiper head 192 by means of a link 204. After the wipers 44, 44have been advanced and closed in response to movement of the carrier 196to the left, Fig. 6, by means of a fluid pressure operated piston, notshown, the wipers are caused to exert increasedpressure on theoverlasted margin of the upper materials as the result of the exhaustingof operating fluid from the cylinders 232 beneath the pistons 26!),through a conduit 266 and the admitting of fluid under pressure abovethese pistons, through conduit 2G8 and passageways 269 in the cylinders202, generally in accordance with the disclosure of Letters Patent No.2,479,575, referred to above. Mounted on a portion of the machine frame36, adjacent to the wiper head 192, is a cylinder 21% containing apiston 212 which has an upwardly projecting stem 214 which is urgeddownwardly by a return spring 216. At its lower end, the cylinder 21% isconnected to the passageway 23? by means of a conduit 218, as shown inFig. 6.

As in the prior machines described in Patents Nos. 2,324,509 and2,663,036, the upper tensioning grippers are associated with a grippersupport which is indicated generally by the reference character 23%),Fig. 6, see also Fig. 3, this gripper support being directly above thewiper head and wiper carrier. Slidably mounted on the upper side of thisgripper support, between guide studs 232, 232 and beneath holddown bars234, 234, is a tripping plate 236 having an upturned end 238 and adownwardly projecting portion 240. Pivotally mounted on a bracket 25%,supported on a pipe 252 which forms a part of the fluid pressure systemof the machine, is a bell-crank lever 266 having one downwardlyextending arm 262 and two upstanding arms 264, 266 adapted to embracethe downwardly extending portion 246 on the tripping plate 236, one ofthese arms being provided with an anti-friction roller 26S. Connected tothe arm 262 of this bell-crank lever is one end of a rod 273, the otherend of which extends through a clearance bore 272 formed in one arm of alever 274. This end of the rod 276 is threaded to receive a nut 276which bears against a thrust collar 278 interposed between this nut andthe lever 274. The other arm of this lever, which is pivotally mountedon the wiper carrier 19% by means of a stud 280, extends to the left, asindicated in Fig. 6, and is provided with a laterally extendingprojection282, see Fig. 1, and a downwardly extending portion 284 intowhich there is threaded an adjustable stop screw 286. A coil spring 288connected to the arm 262 of the bellcrank lever 260 yieldingly holds thebell-crank lever in the position shown in Fig. 6 with the roll 268bearing against the righthand end of the gripper support 230 and withthe upturned end 238 of the tripping plate 236 displaced somewhat to theleft from the lower arm of the trip lever 182.

As the wiper carrier 190 is advanced during the operation of the wipers,the left-hand portion of the lever 274 will assume the positionindicated in dotted lines in Fig. 6 with the laterally extending portion282 thereof directly above the stem 214 of the piston 212. Also, as aresult of this movement of the wiper carrier 190, the bell-crank lever261 will be swung in a clockwise direction, against the resistance ofthe spring 288, and the tripping plate 236 will be shifted to the rightto a position in which its upturned end 238 is substantially in contactwith the trip lever 182, see dotted line position indicated in Fig. 6.Accordingly, when at the conclusion of the inwiping operation, and afterthe wipers 44, 44 have completed their advancing and closing movement,fluid under pressure is admitted into the conduit 268, passageway 209,conduit 218, and cylinder 210, the piston 212 will be elevated, and,through the action of the lever 274, rod 279, bell-crank lever 26i3,tripping plate 236,

3 lever'182, and link 18%, the latch arm'172 will be swung to the left,Fig. 5, thereby releasing the driver arm140 to the action of the driveroperating springs 146 and causing the drivers 80, to be actuated.

When the carrier is in the position shown in Fig. 4, the retarder device50, together with the tack driving mechanism which is associatedtherewith and supported on the carrier 110, will be in its inoperativeposition. As will be understood from reference to the prior patentsmentioned above, especially Patents Nos. 2,324,509 and 2,663,036, thecarrier is in this position at the beginning of each operating cycle andreturns thereto at the conclusion of each operating cycle. As is shownin Figs. 4 and 5, when the carrier is in this position, the upper end ofeach of the tack tubes 96 is in vertical alinement with the lower end ofa tack feeding tube 300 mounted in a bracket 302 which is supported on aportion of the machine frame 36, see also Fig. 5. At their upper'ends,the tubes 339 are connected to a tack separating and distributingmechanism of knownconstruction substantially as disclosed in UnitedStates Letters Patent No. 1,129,881, granted March 2, 1915, in the nameof Ronald P. Mc- Feely, and which includes a separator 364, a tackhopper 306, and a tack pot 363, this mechanism being adapted, as will beunderstood by reference to the mentioned patent, to separate and delivera tack into each of the tubes 3% in response to a single oscillation ofa main drive shaft, herein identified by the reference character 310,Fig. 3. For thus oscillating the shaft 310, at a time in the operatingcycle when the carrier 110 and parts mounted thereon are in thepositions shown in Figs. 4 and 5, and with the tubes 3% in register withthe tubes 93, the following arrangement is provided.

Pivotally mounted on an upright arm 320, supported on a bracket 322,associated with the tack separating and distributing mechanism, is alever 330 which is connected to the connecting rod 332 of a piston 334and also to a link 336, Figs. 1, 2 and 3. The piston 334 is slidablewithin a cylinder 337, the lower end of which is closed and incommunication with the upper end of a conduit 333, this cylinder beingmounted on a laterally extending portion of the aforementioned bracket322. The link 336-is connected to a rack bar 34% which is mounted forvertical sliding movement in the bracket 322 and which has rack teeth342 formed thereon in mesh with a pinion 344, fast on the shaft 310,Fig. 3. A pair of coil springs 359, 356 connected at their upper ends toa crossbar 352, resting in a notch 354 formed in the lever 33%), Fig. 2,and at their lower ends to a pin 356 which extends through a portion ofthe bracket 322, tend to swing the lever 33! in a counterclockwisedirection, Figs. 1 and 2, and clockwise direction, Fig. 3, to the extentdetermined by one or two stop means, not shown but associated with thetack separating and distributing mechanism and adapted to limit theangular oscillating movements of the tack pot 363 and the reciprocatingmovements of other parts associated with this mechanism. The conduit 338is connected, at its lower end, to one side of a valve 366 having aplunger 362 which is slidable within a bore 364 in the valve casing,Figs. 3 and 4. Also connected to this valve, in a location diametricallyopposite to the conduit 338, is a corn duit 366 which leads to thepressure manifold of the fluid pressrue system of the machine, and anexhaust conduit 367 in communication with the bore 364. The valveplunger 362 has a cross passage 368 which provides communication betweenthe two conduits 366 and 333 when the valve plunger is in the positionin which it is shown in Figs. 3 and 4, and also with a cutaway portion379 which connects the conduit 338 to the exhaust conduit 367 when thevalve plunger is shifted a short distance to the left, Fig. 3, and tothe right, Fig. 4, thereby shutting off communication between theconduits 366 and 338.

The valve plunger 362 is held in the position in-Which it is showninFigs. 3 and 4 in the following manner. Pivotally connected to theplunger is one end of a rod 380,

the other end of which is slidably supported in the upper portion of abracket member 382. This bracket member is carried by a connecting rod384 associatedwith a piston 386, this piston and its connecting rodbeing provided for rotating the post 124 in one direction, against theresistance of a return spring 388, in the manner explained in detail inthe aforementioned patents. Also mounted on this bracket member is astud 390 on which there is rotatably supported a hub portion 392 havingformed integrally therewith at one end an arm 394- and at its other endan abutment bar 396 provided with a cutaway portion 398, Fig. 3. Securedto the rod 380 is a sleeve member 400 carrying an adjustable abutmentscrew 402, and a collar 404 between which and a plate 406, supported onthe valve 360, a compression spring 408 is interposed. Connected at itslower end to the arm 394 is a Bowden wire 410 which extends upwardlythrough a casing 412 and also through a guide stud 414 on the rack bar340. Secured to the upper end of this Bowden wire, by means of a screweye 416, is a collar 418, and stretched between this screw eye and a pin420, carried by the rack bar, is a coil spring 422.

With the arrangement just described, when pressure of operating fluid isbuilt up in the manifold associated with the fluid pressure system ofthe machine, in repsonse to an initial depression of the controltreadle, the piston 334 will be moved upwardly by fluid under pressurepassing from the conduit 366 to the conduit 338 through the bore 368 inthe valve plunger 362, Fig. 4, to rotate the tack pot 308 in onedirection to an extent determined by the other of the two aforementionedstop means, and as this piston reaches the limit of its upward movement,the abutment bar 396 will be moved out of engagement with the abutmentscrew 402, as a result of a partial rotation of the hub member 392, bythe Bowden wire 410. Now the spring 408 will shift the valve plunger 362to the left, Fig. 3, to the right, Fig. 4, thereby shutting offcommunication between the conduit 366 and conduit 338 and connecting thelatter conduit to the exhaust conduit 367 through the cutaway portion370 on the valve plunger 362. Springs 350, 350 will now return thepiston 334 to the position shown in Fig. 3, thus completing oneoscillation of the shaft 310 and effecting a single operation of thetack separating and distributing mechanism to separate and to deliver aload of tacks to the tubes 300, 300 and thence, through tubes 90, 90, tothe driver passages 78, 78 in the block 70 of the retarder device 50,Fig. 9. During this return of the piston 334 and rack bar 340 to theposition shown in Fig. 3, the abutment bar 396 will be swung reverselyand into contact with the side of the abutment screw 402 the end ofwhich now bears against the right-hand side of the bracket 382, spring422 yielding to permit this action. When the piston 386 is operated toswing the post 124, together with the carrier 110, at an intermediatepoint in the operating cycle of the machine, the bracket 382 will bemoved to the left, Fig. 3, and to the right, Fig. 4, thereby permittingthe abutment bar 396 to be returned to the position shown in Fig. 3 withits cutaway portion 398 in engagement with the rod 380. Accordingly,when the post 1245 and carrier 110 are swung reversely by the spring388, the various parts will be returned to the positions shown in Figs.3 and 4, and conduit 366 will again be placed in communication with theconduit 338.

The action just described occurs at the very end of the operating cycleof the machine and just about as the manifold is connected to exhaust.Thus, there will probably not be suflicient pressure of operating fluidin the manifold at this time to elevate the piston 334, against theresistance of the springs 350, 350. However, if the pressure of theoperating fluid in the manifold should be suflicient to cause a cycle ofoperation of the tack separating and distributing mechanism, in responseto upward movement of the piston 334, no harm will be done as thecarrier'llll will have beenreturned to the position shown in Fig. 4 andthe tubes 300 will be in register with the tubes 90. Also, when thetreadle is initially depressed prior to the beginning of the next cycleof operation of the machine, no cycling of the tack separating anddistributing mechanism can occur, inasmuch as the abutment bar 396 willhave been swung away from thescrew 402 and cannot be returned to theposition in which it is shown in Fig. 4 until the post 124 and carrier110 have again been operated to move the retarder device to itsoperative position and then to return it to its inoperative position.Thus, whether the cycling of the tack separating and distributingmechanism occurs at the beginning or at the end of an operating cycle ofthe machine, it can occur only once during each operating cycle and thenat a time when the fastener inserting mechanism is in the position shownin Fig. 4 and with the tubes 300 in'aline' ment with the tubes 90.

Referring to Fig. 2 of the drawings, the tack pot 308 is provided with aradially extending boss portion 430 and rotatably mounted on the bracket322 is an arm 432 carrying a stop lug 434. When, for any reason, it isdesired to eliminate the cycle of operation of the tack separating anddistributing mechanism, while permitting the toe lasting machine toperform its cycle of operations, the arm 432 may be swung in acounterclockwise direction, Fig. 2, to bring the stop lug 434 beneaththe boss portion 430. In order to facilitate the movement of the tacksalong their raceways, a hammer 440, mounted on a stud 442, is provided.A coil spring 444 is adapted to swing the hammer in one direction and apair of operating pins 446 are arranged to be rotated by means offriction drive wheels 448, these pins each cooperating with a surface450 formed on an arm 452 which carries the hammer, to swing the hammerin the opposite direction and then to release the hammer to the actionof spring 444.

Except for the manner in which the lasting margin of the upper U issecured to the insole I, the machine of the present invention operatesin the same manner as the prior machines described in theabove-mentioned patents. Thus, in response to an initial depression ofthe control treadle, the upper materials around the toe end of the shoebeing lasted are seized by the grippers as they close, see gripper 40,Fig. 12, while a second depression of this treadle will start anautomatic cycle of operations of the machine. In addition to causing theclosing of the grippers, the building up of pressure in the manifold, asa result of the initial depression of the control treadle, will effect acycle of operation of the tack separating and distributing mechanism, ifsuch cycle of operation has not been efiected at the conclusion of theprevious cycle of operation of the toe lasting machine, as explainedabove. Therefore, at the beginning of each cycle of operations of thetoe lasting machine, a load of tacks will have been separated anddelivered to the driver passages 78 in the retarder device 50, asindicated at t in Fig. 9, the several tack drivers 80 at this time beingin their lowermost positions to which they were moved when the tackswere driven in the previous operating cycle of the toe lasting machine.

During the automatic operating cycle of the machine, the upper materialsare tensioned by the grippers and are shaped to the toe end of the lastby means of the toe former 42 and all but the outermost layer of theupper materials, i.e., the upper U, are trimmed away by the trimmingknives 52, Fig. 13, in the same manner as in the prior machines. Also,the upper alone is subject to another tensioning and shaping action bythe grippers and toe former, Figs. 14 and 15. Just before the grippersopen to release the lasting margin of the upper U, the wipers 44, 44commence to advance and close, thereby snubbing the lasting margin ofthe upper against the inclined surface on the plate 72 of the retarder50, which, following the trimming operation, had been shifted from itsinoperative position, Figs- 4 and 5, to its operative position as shownin Fig. '15. As will be seen by refer ence to the last-mentioned figure,the tack drivers at this time will have been elevate-:i'as the result ofthe admission of fluid under pressure to the cylinder 156 through theconduit 186 which, as previously explained, occurs concurrently with theoperation of the trimming knives, so that the tack t in each of thedriver passages 78 now drops down onto the-tack retaining spring 92.

As the wipers continue their advancing and closing movements, theretarder device is forced upwardly, against the resistance of the spring126, Fig. 5, so that the wipers pass thereunder, Fig. 17, and finallycomplete their advancing and closing movements as they arrive at thepositions shown in Fig. 16, with the lasting margin of the upper wipedinwardly over and pressed against the toe end of the insole I. As theresultof the advancing and closing movements of the wipers, which areeffected by movement of the wiper carrier 190 to the left, Fig. 6, thetripping plate 236 and lever 274 will have assumed the positions shownin dotted lines in this figure. Hence, when operating fluid'is exhaustedfrom beneath the piston 29% and fluid under pressure is admitted to thecylinder 292 above this piston, through the conduit 2%, to cause thewipers to press more firmly against the lasting margin of the upper,which occurs just before the main control shaft of the machine isbrought to a stop, see particularly Patent No. 2,479,575, mentionedabove, the piston 212 will be elevated to trip the latch arm 172 andthereby cause the drivers to be actuated by their springs 146 to drivethe tacks t through the openings ed in the wipers and through thelasting margin of the upper and insole as shown in Fig. '16, the pointsof these tacks being turned over and clenched by engagement with a metalplate P on the bottom of the last.

At this point in the operating cycle of the machines of the patentsmentioned above, in which the lasting margin of the upper is to besecured in lasted position to the insole by cement, the main controlshaft remains stopped for a predetermined time interval, which maybevaried by the adjustment of a needle valve, see valve 1416 of themachine of Patent No. 2,324,509, at the conclusion of which interval therotation of the control shaft is continued to complete the operatingcycle and return the various operating elements to their originalpositions. In the herein illustrated machine, inasmuch as there is noneed for a continued pressure dwell, the aforementioned time intervalmay be reduced to a'minimum, and even substantially eliminated, bysuitable adjustment of the mentioned needle valve, as will be readilyunderstood. In any event, as the control-shaft continues its rotationafter this dwell interval and following the driving of the tacks t, theretarder device is first elevated and then returned to its inoperativeposition, Figs. 4 and 5, prior to the retraction and opening of thewipers 44, 44. Fig. 18 shows the toe end of a shoe S after its toe endhas been lasted and the lasting margin of the upper U secured to theinsole by means of tacks t, in the machine of this invention. As will bereadily understood, the tack block 70 and driver assembly, including theseveral drivers 30 and the header block to which they are attached, maybe easily removed and replaced by a tack block and driver assembly ofdifferent shape or size to accommodate various styles and .sizes ofshoes. However, one size and shape of'tack block and driver assembly maybe used with satisfactory results for the lasting of a wide run of sizesof shoes of the same style and for different styles in which the toeends of the shoes do not vary extremely in shape.

While the features of the presentinvention are of particularsignificance in connection with the lasting of the toe ends of shoeshaving multi-ply upper materials, inasmuch as the trimming away of allbut the outermost layer during the toe lasting operation greatlyfacilitates the lasting operation as well as making itpossiblesatisfactorily to secure the lastingmargin of the outermost layer, i.e.,the upper U, to-the insolein lasted position by means of relativelysmall tacks driven through the lasting margin and insoie and clenchedagainst a metal plate on the last, these'features are also of greatutility in connection with the toelasting of shoes having unlineduppers. In lasting shoes of this type, the trimming operation, which ofcourse is not required, may be eliminated in the manner suggested inPatent No. 2,663,036, or the features of this invention could beembodied in a toe lasting machine of this type provided with theimproved controlling means disclosed and claimed in a copendingapplication for United States Letters Patent, Serial No. 434,271, filedJune 3, 1954, in the name of the present applicant, and now E atent No.2,877,627, issued March 17, 1959.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

l.- in a machine for lasting the toe end of a shoe having a multi-plyupper assembled on a last with an insole, means for conforming theseveral layers of the upper materials to the shape of the toe end of thelast, means for trimming away the lasting margin of selected layers ofupper material at the toe end of the shoe, means for thereafter layingthe lasting margin of the remaining upper material inwardly over and forpressing said lasting margin against the bottom of the insole, aretarder device adapted to cooperate with said overlaying means, meanscarried by said retarder device for inserting fastenings into theoverlaid lasting margin and insole to secure the lasting margin to theinsole in lasted position, and means for supplying fastenings to saidretarder device.

2. in a machine for lasting the toe end of a shoe having a multi-plyupper assembled on a last with an insole, means for conforming theseveral layers of the upper materials to the shape of the toe end of thelast, means for trimming away the lasting margin of all but the outerlayer of upper material at the toe end of the shoe, wipers forthereafter wiping the lasting margin of said outer layer of uppermaterial inwardly over and for pressing said lasting margin against thebottom of the insole, said wipers being provided with openings, aretarder device adapted to cooperate with said wipers, means carried bysaid retarder device for driving tacks through said openings into theoverwiped lasting margin and insole to secure the insole in lastedposition, and means for supplying tacks to the retarder device.

3. In a machine for lasting the toe end of a shoe having an upperassembled on a last together with an insole, means for conforming theupper to the toe end of the last, wipers for thereafter wiping thelasting margin of the upper inwardly over and for pressing said lastingmargin against the bottom of the insole, a retarder device adapted tocooperate with said wipers as the lasting margin is wiped inwardly overthe insole, means carried by the retarder device for driving tacks intothe overwiped lasting margin and insole to secure the lasting margin tothe insole in lasted position, and means for supplying tacks to saidretarder device.

4. In a machine for lasting the toe end of a shoe having an upperassembled on a last together with an insole, means for conforming theupper to the toe end of the last, wipers for thereafter wiping thelasting margin of the upper inwardly over and for pressing said lastingmargin against the bottom of the insole, a retarder device movable frominoperative position remote from the toe end of the shoe to an operativeposition adjacent to the toe end of the shoe for cooperating with saidwipers as the lasting margin is laid inwardly over the insole, meanscarried by the retarder device for inserting fastenings into theoverwiped lasting margin and insole to secure the lasting margin to theinsole in lasted position, and means for supplying fastenings to theretarder device when it is in said inoperative position.

5. In a machine for lasting the toe end of a shoe having an upperassembled on a last together with an insole, means for conforming theupper to the toe end of the last, wipers for thereafter wiping thelasting margin of the upper inwardly over and for pressing said lastingmargin against the bottom of the insole, a retarder device movable froman inoperative position remote from the toe end of the shoe to anoperative position adjacent to the toe end of the shoe for cooperatingwith said wipers as the lasting margin is wiped inwardly over theinsole, said wipers being provided with openings, means carried by theretarder device for inserting fastenings through said openings into theoverwiped lasting margin and insole to secure the lasting margin to theinsole in lasted position, and means for supplying fastenings to theretarder device when it is in said inoperative position.

6. In amachine for lasting the toe end of a shoe having an upperassembled on a last together with an insole, means for conforming theupper to the toe end of the last, wipers for thereafter wiping thelasting margin of the upper inwardly over and for pressing said lastingmargin against the bottom of the insole, a retarder device movable froman inoperative position remote from the toe end of the shoe to anoperative position adjacent to the toe end of the shoe for cooperatingwith said wipers as the lasting margin is wiped inwardly over theinsole, said wipers being provided with openings, means carried by theretarder device for driving tacks through said openings into theoverwiped lasting margin and insole to secure the lasting margin to theinsole in lasted position, and means for supplying tacks to the retarderdevice when it is in said inoperative position.

7. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, means for laying the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, and means for inserting fastenings into theoverlaid lasting margin and insole to secure the lasting margin to theinsole in lasted position, said fastening inserting means comprising afastening inserting device movable heightwise and transversely of theshoe from an inoperative position remote from the end portion of a shoein the machine to an operative position adjacent to said end portion ofthe shoe, means for moving said device to and from said positions, afastening distributing mechanism separate from the device for deliveringfastenings to said device when it is in its inoperative position, andfastening inserting drivers for inserting fastenings, delivered to saiddevice while in its inoperative position, when the device is moved toits operative position.

8. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, wipers for wiping the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, and means for driving tacks into the overwipedlasting margin and insole to secure the lasting margin to the insole inlasted position, said tack driving means comprising a tack drivingdevice movable heightwise and transversely of the shoe from aninoperative position remote from the end portion of a shoe in themachine to an operative position adjacent to said end portion of theshoe, means for moving said device to and from said positions, a tackdistributing mechanism separate from the device for deliven'ng tacks tosaid device when it is in its inoperative position, and tackd-rivers fordriving tacks, delivered to said device while in its inoperativeposition, when the device is moved to its operative position.

9. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, means for laying the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, said overlaying means being provided withopenings, and means for inserting fastenings through said openings intothe overlaid lasting margin and insole to secure the lasting margin tothe insole in lasted position, said fastening inserting means comprisinga fastening inserting device movable heightwise and transversely of theshoe from an inoperative position remote from the end portion of a shoein,the machine to an operative position adjacent to said end portion ofthe shoe, means for moving said device to and from said positions, afastening distributing mechanism separate from the device for deliven'ngfastenings to said device when it is in its inoperative position, andfastening inserting drivers for inserting fastenings, delivered to saiddevice while in its inoperative position, whenthe device is moved to itsoperative position.

10. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, wipers for wiping the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, and means for inserting fastenings into theoverwiped lasting margin and insole to secure the lasting margin to theinsole in lasted position, said fastening inserting means comprising afastening inserting device movable heightwise and transversely of theshoe from an inoperative position remote from the end portion of a shoein the machine to an operative position adjacent to said end por tion ofthe shoe and provided with fastening receiving passages, means formoving said device to and from said positions, a fastening distributingmechanism separate from the device having fastening discharge passagesadapted to register with said fastening receiving passages fordelivering fastenings to said device when it is in its inoperativeposition, and fastening inserting drivers for inserting fasteningsdelivered to said device while in its inoperative position, when thedevice is moved to its operative position.

11. In a machine for lasting the end of a shoe having an upper assembledon a last together with an insole, means for shaping the upper to theend portion of the last, means for laying the lasting margin of theupper inwardly over and for pressing said lasting margin against thebottom of the insole, said overlaying means being provided withopenings, and means for driving tacks through said openings into theoverlaid lasting margin and insole to secure the lasting margin to theinsole in lasted position, said tack driving means comprising a tackdriving device movable heightwise and transversely of the shoe from aninoperative position remote from the end portion of a shoe in themachine to an operative position adjacent to said end portion of theshoe, means for moving said device to and from said positions, a tackdistributing mechanism separate from the device for delivering tacks tosaid device when it is in its inoperative position, and tack drivers fordriving tacks, delivered to said device while in its inoperativeposition, when the device is moved to its operative position.

12. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, wipers for wiping the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, and means for driving tacks into the overwipedlasting margin and insole to secure the lasting margin to the insole inlasted position, said tack driving means comprising a tack drivingdevice movable heightwise and transversely of the shoe from aninoperative position remote from the end portion of a shoe inthe'machine to an operative position adjacent to said end portion of theshoe and provided with tack receiving passages, means for moving saiddevice to and from said positions, a tack distributing mechanismseparate from the device having tack dis- 13 charge passages adapted toregister with said tack receiving passages for delivering tacks to saiddevice when it is in its inoperative position, and tack drivers fordriving tacks, delivered to said device while in its inoperativeposition, when the device is moved to its operative position.

13. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, means for laying the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, said overlaying means being provided withopenings, and means for inserting fastenings through said openings intothe overlaid lasting margin and insole to secure the lasting margin tothe insole in lasted position, said fastening inserting means comprisinga fastening inserting device movable heightwise and transversely of theshoe from an inoperative position remote from the end portion of a shoein the machine to an operative position adjacent to said end portion ofthe shoe and provided with fastening receiving passages, means formoving said device to and from said positions, a fastening distributingmechanism separate from the device having fastening discharge passagesadapted to register with said fastening receiving passages fordelivering fastenings to said device when it is in its inoperativeposition, and fastenng inserting drivers for inserting fasteningsdelivered to said device while in its inoperative position when thedevice is moved to its operative position.

14. In a machine for lasting the end portion of a shoe having an upperassembled on a last together with an insole, means for shaping the upperto the end portion of the last, wipers for wiping the lasting margin ofthe upper inwardly over and for pressing said lasting margin against thebottom of the insole, said wipers being provided with openings, andmeans for driving tacks through said openings into the overwiped lastingmargin and insole to secure the lasting margin to the insole in lastedposition, said tack driving means comprising a tack driving devicemovable heightwise and transversely of the shoe from an inoperativeposition remote from the end portion of a shoe in the machine to anoperative position adjacent to said end portion of the shoe and providedwith tack receiving passages, means for moving said device to and fromsaid positions, a tack distributing mechanism separate from the devicehaving tack discharge passages adapted to register with said tackreceiving passages for delivering tacks to said device when it is in itsinoperative position, and tack drivers for driving tacks, delivered tosaid device while in its inoperative position, when the device is movedto its operative position.

References Cited in the file of this patent UNITED STATES PATENTS1,980,435 Pym et al. Nov. 13, 1934 2,060,085 Iorgensen Nov. 10, 19362,324,509 Jorgensen July 20, 1943

